What is the window for delivery eBay gave you?
When the last date of that window passes, you can open a Dispute in the Resolution Centre at the bottom of this page.
You have 30 days to do this if the delivery date passes, but nothing will happen until it does.
Since you mention Pitney Bowes, I believe your seller uses the Global Shipping Program which offers her strong Seller Protection on exported shipments.
Your parcel goes first to the GSP/PB plant in Erlanger KY.
Have you seen confirmation of delivery to that address?
Once at the plant, the shipment is added to a larger shipment headed to your part of Canada and shipped to the border.
Usually to Mississauga, where it is broken down and shipped via Canada Post to you.
Sometimes other shippers like FedEx and CanPar are used instead.
At the KY plant the tracking number is changed to something like UPAxxxxxxxxx.
You can use that number to contact the GPS. Go to the Pitney Bowes Parcel Tracker page at https://parceltracking.pb.com/app/#/dashboard/
Unless the last estimated date for delivery has passed, you have nothing to report.
